Article
Chemistry, Physical
Zongyu Wang, Zhengguan Xu, Yapeng Yuan, Xinghe Teng, Zepeng Pu, Yangyang Wang, Aiping Fu, Yu-Guo Guo, Hongliang Li
Summary: The newly designed Si@TiO2@rGO pomegranate-shaped microspheres exhibit high strength and superior reversible capacity, showing excellent cycling stability under high current density conditions.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yuxin Hu, Yingjun Qiao, Zhengwei Xie, Lin Li, Meizhen Qu, Wenjing Liu, Gongchang Peng
Summary: A clean and easy method was developed to fabricate silicon anode material for lithium-ion batteries, demonstrating stable cycling performance, high reversible capacity, and good rate capability. The synthesis process retained the functional groups, viscoelasticity, and hydrophilicity of the polymer, enhancing the performance of the silicon anode.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Gi Dae Park, Yun Chan Kang, Jung Sang Cho
Summary: Phase-pure ZnMn2O4 nanopowders and their aggregated microsphere powders were successfully obtained by a simple spray drying process followed by post-annealing. The optimized post-annealing temperature of 800 degrees C resulted in ZnMn2O4 nanopowders with high capacity and good cycle performance. The aggregated ZnMn2O4 microsphere exhibited improved cycle stability, with a capacity retention of 84% after the second cycle.
Article
Electrochemistry
Dienguila Kionga Denis, Fakhr Uz Zaman, Linrui Hou, Guozhu Chen, Changzhou Yuan
Summary: In this work, a scalable spray-drying strategy is developed to prepare nickel/ cobalt/molybdenum-based nano carbides embedded in porous microspherical carbon architectures for LIBs. The resulting microspheres demonstrate superior lithium storage performance, with high first Coulombic efficiency, reversible capacities, rate behaviors, and cycling stability. The study also shows promising potential for achieving various nano carbides for advanced LIBs and beyond.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Jing Jiang, Hongyu Wang, Jiquan Zhao, Jingde Li, Guihua Liu, Yongguang Zhang
Summary: The study successfully addressed the challenges in the application of lithium-sulfur batteries (LSBs) by fabricating a porous microsphere-based sulfur cathode, Mg ZIF-67/CNT@GO composite. This composite showed improved electrical conductivity, reduced loss of polysulfides, and enhanced catalytic performance, leading to promising electrochemical performance of the LSBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Guozhen Zhu, Wenling Jiao, Qing Li, Yunhao Zhao, Xianhu Liu, Renchao Che
Summary: A hierarchical conductive optimization strategy was proposed to improve the rate capability of traditional TNO electrodes by fabricating highly conductive porous TNO@C/CNTs microsphere. The attached carbon materials on the TNO-based electrode significantly enhanced the conductivity and cyclic durability, leading to improved performances of LIBs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Sung Eun Wang, DoHoon Kim, Min Ji Kim, Jung Hyun Kim, Yun Chan Kang, Kwang Chul Roh, Junghyun Choi, Hyung Woo Lee, Dae Soo Jung
Summary: A Si-embedded titanium oxynitride (Si-TiON) material was successfully fabricated using a spray-drying process, which can uniformly coat the Si surface to enhance Si utilization and electrode stability. The Si-TiON electrodes exhibited improved capacity retention and rate performance in lithium-ion batteries.
Article
Nanoscience & Nanotechnology
Ruhan He, Zhenhui Liu, Pan He, Wen Luo, Ruohan Yu, Xufeng Hong, Xuelei Pan, Qingqu Zhou, Liqiang Mai, Liang Zhou
Summary: This study successfully overcame the challenges faced by TiO2 under deep discharging/charging conditions by constructing three-dimensional macroporous TiO2 microspheres with interconnected pores and nanocrystalline thin walls through a scalable template-assisted spray drying method. The excellent discharge capacity and cyclic stability offer new possibilities for the application of lithium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Zongyu Wang, Laiying Jing, Xiang Zheng, Zhengguan Xu, Yapeng Yuan, Xuehua Liu, Aiping Fu, Yu-Guo Guo, Hongliang Li
Summary: Novel 3D interpenetrating microspheres Si@C-CNTs, consisting of silicon nanoparticles interpenetrated with carbon nanotubes (CNTs) and bound with amorphous carbon (C), were designed and prepared. As an anode for lithium-ion batteries, Si@C-CNTs microspheres exhibit outstanding performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Hong Geun Oh, Jeong Ho Na, Seung-Keun Park
Summary: In this study, porous 3D carbon microspheres were fabricated via a simple spray-drying method and used as electrode materials in potassium-ion batteries. The composite exhibited excellent electrochemical properties, including stable cycling performance and improved ion transport kinetics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Haojie Duan, Hongqiang Xu, Qian Wu, Lin Zhu, Yuting Zhang, Bo Yin, Haiyong He
Summary: A silicon/graphite/amorphous carbon (Si/G/C) composite material has been successfully synthesized through a facile spray-drying and heating treatment method, and it exhibits excellent electrochemical performance in lithium-ion batteries compared to a silicon/amorphous carbon (Si/C) sample. The Si/G/C composite shows higher initial discharge capacity, better cyclic and rate performance, demonstrating that graphite can effectively improve the electrochemical properties of silicon anode materials.
Article
Chemistry, Physical
Su Hyun Yang, Jin Koo Kim, Dae-Soo Jung, Yun Chan Kang
Summary: In this study, silicon-nanoparticle-embedded amorphous carbon-graphitic carbon composite microspheres were synthesized using a spray drying process. The resulting microspheres exhibit superior electrochemical properties compared to bare silicon nanopowders and silicon/amorphous carbon composite microspheres, thanks to their unique structure and the presence of empty voids. The composite-based electrode shows excellent long-term cycling stability and stable reversible discharge capacity even at high current density.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Jiadong Yu, Yanjun Liu, Shiping Han, Quanyin Tan, Lili Liu, Jinhui Li
Summary: Sodium ion pollution affects the quality and surface cleanliness of lithium-ion battery precursors. By controlling the consumption of sodium salt and using ammonia instead of NaOH for pH regulation, this issue can be effectively addressed.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Wenjing Liu, Yuxin Hu, Hanxiao Zhou, Tianhui Li, Meiling Huang, Meizhen Qu, Gongchang Peng, Zhengwei Xie
Summary: In this study, Si@(AP-AOCNTs) composites with uniform conductive network and pore structure were prepared to address the challenges of using silicon anode in lithium-ion batteries. The composite material effectively buffered the volume expansion of silicon and facilitated the transport of electrons and ions, resulting in remarkable cycle life and reversible specific capacity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiaofei Yang, Xuefang Chen, Jingyi Qiu, Meng Li, Hai Ming, Songtong Zhang, Tingting Zhang
Summary: A silicon/carbon hollow microsphere was successfully synthesized using recycled kerf loss silicon and lignin as raw materials. The micron kerf loss silicon provided nucleation sites for lignin, leading to uniform distribution of carbon on the silicon's surface. The composite exhibited excellent electrochemical properties as anode material for lithium-ion battery, showing high reversible capacity and capacity retention, demonstrating a cost-effective strategy for preparing high-capacity and high-cycling-behavior anode materials.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Peng-Fei Wang, Xuewei He, Ze-Chen Lv, Hucheng Song, Xiaoying Song, Ting-Feng Yi, Ning Xu, Ping He, Haoshen Zhou
Summary: Poly(ethylene oxide)-based polymer all-solid-state Li-S battery shows promise for its high specific energy, good processability, and low cost. However, its poor room temperature ionic conductivity hinders further development. In this study, an innovative photothermal battery technology is proposed which utilizes a 3D Cu substrate with Cu/Si core-shell structures to efficiently generate heat and improve reaction kinetics. This technology enables a long lifespan and excellent electrochemical performance for the battery system. Additionally, the 3D nanostructure can accommodate volume variation of lithium and suppress dendrite growth. This study opens the avenue to develop room temperature polymer all-solid-state Li-S batteries using photothermal technology.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xin-Dong Pan, Xiao-Chun Li, Jinlong Wang, Bai-Chuan Xu, Yi-Ming Lyu, Yu-Ping Xu, Xueli Zhao, Hai -Shan Zhou, Guang-Nan Luo
Summary: First-principles theory was used to identify the structure of gamma-Al2O3. The hydrogen dissolution and diffusion behavior was further studied, revealing that the permeation reduction factor (PRF) of gamma-Al2O3 is lower than that of alpha-Al2O3. The calculations showed that the stability of Al vacancies at the octahedral interstitial site (VAl-3 -OIS) is higher than that at the tetrahedral interstitial site (V-3 Al -TIS), indicating the preferred formation of VAl-3 -OIS in both Al-rich and O-rich environments in gamma-Al2O3.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Physics, Fluids & Plasmas
Bao-Long Ji, Chi Wang, Shou-Xi Gu, Qiang Qi, Xiao-Chun Li, Hai-Shan Zhou, Guang-Nan Luo
Summary: To achieve tritium self-sufficiency in fusion reactors, neutron multiplier materials, such as beryllium and beryllides, are needed. However, the preparation and analysis of these materials are challenging due to their toxicity. Therefore, theoretical methods are essential to obtain the necessary parameters for the design and optimization of neutron multipliers. In this study, the electron structure, vibrational spectra, and thermal performances of beryllium and beryllides were investigated theoretically, along with experimental data for comparison. The results provide valuable insights for predicting the performance of these materials in future fusion reactors.
Article
Physics, Fluids & Plasmas
S. Gu, B. Ji, C. Wang, Q. Qi, H. -S. Zhou, Y. Zhang, G. -N. Luo
Summary: In this study, long-term annealing experiments were conducted on the lithium-based ceramic breeder Li4SiO4 at a high temperature of 900 degrees C. It was observed that the microstructure of Li4SiO4 pebbles changed over time, with the poor pebbles showing a coarsening process and the excellent pebbles maintaining their microstructure stability. Loss of oxygen and lithium elements was also demonstrated during annealing. Compression tests and Weibull analysis revealed that the mechanical performance of Li4SiO4 pebbles degraded mainly in the initial 100 hours of annealing, with a slower degradation process afterwards. Thermal desorption spectroscopy showed changes in the release peaks of hydrogen isotopes, which were attributed to the decomposition of carbon impurities and the transition from closed to open pores.
Article
Engineering, Chemical
L. P. Zhang, L. Chang, X. G. Yuan, J. H. Zhang, H. S. Zhou, G. N. Luo
Summary: In this study, a RF plasma source driven by a helicon antenna with a focused magnetic field was constructed. The electron density, temperature, and energy distribution functions of electrons and ions were measured using RF compensated Langmuir probe and retarding potential analyser. The presence of two groups of electrons was reported for the first time, which has implications for both practical applications and the fundamental model of the helicon discharge. The measurement data obtained at different locations showed the decaying and shrinking features of the plasma plume, indicating that the plasma source is a promising candidate for material treatment.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Wei Li, Pengfei Wang, Menghang Zhang, Hui Pan, Xuewei He, Ping He, Haoshen Zhou
Summary: This study reports a novel PEO-based Li-S battery cathode with high sulfur utilization and long-term cycling performance by chemically grafting 1-Ethyl-3-methylimidazolium bromide (EMIM+-Br-) onto carbon nanotubes (CNTs).
Article
Multidisciplinary Sciences
Xinyi Sun, Xiaowei Mu, Wei Zheng, Lei Wang, Sixie Yang, Chuanchao Sheng, Hui Pan, Wei Li, Cheng-Hui Li, Ping He, Haoshen Zhou
Summary: A soluble binuclear copper(I) complex serves as a catalyst to increase the output voltage and discharge capacity of Li-CO2 batteries.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Si-Wen Ke, Wei Li, Yuming Gu, Jian Su, Yifan Liu, Shuai Yuan, Jing-Lin Zuo, Jing Ma, Ping He
Summary: In this study, bifunctional cathode catalysts for ORR/OER were constructed in a COF platform by incorporating Ni-bis(dithiolene) and Co-porphyrin units. The resulting bimetallic Ni/Co-COF exhibited high surface area, good electrical conductivity, and excellent chemical stability. Li-O2 batteries with the Ni/Co-COF-based cathode showed low discharge/charge potential gap and stable cycling, comparable to PtAu nanocrystals. DFT computations and control experiments revealed the critical role of Ni and Co sites in regulating the Li2O2 deposition.
Article
Chemistry, Physical
Xuewei He, Xiaowei Mu, Yigang Wang, Pengfei Wang, Ping He
Summary: Due to the large volume expansion and low Coulombic efficiency of Si-based anodes in Li-based secondary batteries, a complete chemical prelithiation method was developed to improve their performance. The method showed control over the extent of prelithiation and resulted in reduced interfacial impedance. When paired with a suitable cathode, the complete prelithiated Si/C anodes demonstrated a specific energy of 578.7 Wh kg(-1) and excellent cycling stability. This study provides a promising solution for the practical application of Si-based anodes in high-energy-density Li-based secondary batteries.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Hematology
Jinsong Mou, Haishan Zhou, Zhangui Feng, Shiya Huang, Zhaohui Wang, Chaoyu Zhang, Yudong Wang
Summary: This study aimed to explore the risk factors for anemia among Chinese children aged 3-7 years old and provide a basis for prevention and control. The study found that maternal anemia before or during pregnancy, low gestational weeks, G6PD deficiency and thalassemia, having cold and cough in previous two weeks, low family income, and being a picky eater were determinants of anemia in children aged 3-7 years old. Therefore, efforts should be made to improve maternal health education, screen for disease-related anemia, seek timely medical services, improve household economic status, promote dietary habits, and improve sanitation and hygiene practices to prevent and control childhood anemia.
Article
Energy & Fuels
Menghang Zhang, Hui Pan, Yigang Wang, Jingui Yang, Hao Dong, Ping He, Haoshen Zhou
Summary: With the growth of the Li-ion battery industry, the global concern over the shortage of lithium (Li) has risen. Extracting Li from the ocean, which holds Li reserves about 16,000 times greater than the current global recoverable Li resources, has become an attractive option. This study used first-principles calculations to evaluate the ion migration barriers and ion selectivity of NASICON-type ion conductors and found that NASICON exhibits remarkable ion selectivity and screening ability, which can be further enhanced through proposed strategies to reduce Li migration energy barrier and improve Li selectivity.
Article
Energy & Fuels
Peng-Fei Wang, Ying Li, Shu-Hui Tian, Jian-Cang Wang, Feilong Qiu, Yan-Rong Zhu, Ting-Feng Yi, Ping He
Summary: In this study, N-doped hard carbon fibers and N-doped hard carbon@soft carbon composite fibers were prepared using a simple electrospinning technique. The electrochemical properties of these fibers as anode materials for Li-ion batteries were investigated. The addition of coal tar pitch as a soft carbon source improved the electrical conductivity of the fibers, and the best electrochemical performance was observed for the N-doped hard carbon@soft carbon fibers carbonized at 800 degrees C.
Article
Chemistry, Multidisciplinary
Wei Li, Chuanchao Sheng, Lei Wang, Xinyi Sun, Xiaowei Mu, Ping He, Haoshen Zhou
Summary: In this study, bifunctional self-defense redox mediator MgI2 is introduced into dimethyl sulfoxide-based Li-O-2 batteries. During charging, the oxidation of I- to I-3(-) facilitates the decomposition of Li2O2, reducing overpotential. Moreover, Mg2+ spontaneously reacts with the Li anode to form a stable SEI layer containing MgO, which enhances the interface stability. Consequently, the Li-O-2 battery with MgI2 exhibits an extended cycling life span (400 cycles) and a low overpotential (0.6 V).
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Lei Wang, Wei Li, Xinyi Sun, Xiaowei Mu, Chuanchao Sheng, Zhang Wen, Ping He, Haoshen Zhou
Summary: In this study, 1-aminopropyl-3-methylimidazolium bromide (APMImBr) was introduced in dimethyl sulfoxide-based Li-O-2 batteries. The bromide ions act as a redox mediator to catalyze the decomposition of Li2O2 products. Additionally, APMIm(+) serves as a scavenging agent for superoxide radicals and protects the lithium metal anodes with an in situ formed Li3N-rich solid electrolyte interface layer. As a result, the Li-O-2 batteries containing APMImBr exhibited an increased discharge capacity, reduced charge overpotential of approximately 0.61 V, and prolonged cyclic life of over 200 cycles.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Huijun Yang, Ruijie Zhu, Yang Yang, Ziyang Lu, Zhi Chang, Ping He, Chunyu Zhu, Sho Kitano, Yoshitaka Aoki, Hiroki Habazaki, Haoshen Zhou
Summary: A robust polymer separator is used to address the challenges of dendritic Zn morphology and short circuits in Zn-based energy storage systems. This enables high reversibility and energy density, making it a sustainable battery technology.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
